#include <stdio.h>

int main()
{
        int day;
            scanf("%d",&day);
                
            switch(day){
            case 1:
                printf("星期一\n");
                break;
            case 2:
                printf("星期二\n");
                break;
            case 3:
                printf("星期三\n");
                break;
            case 4:
                printf("星期四\n");
                break;
            case 5:
                printf("星期五\n");
                break;
            case 6:
                printf("星期六\n");
                break;
            case 7:
                printf("星期天\n");
                break;
            default:
                printf("选择错误!\n");
                break;
            }
            
            return 0;
}
//case后面必须是整形常量表达式，字符可以，因为字符存储的是ASCII码值